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# Middleware Systems Administrator

- **Company:** AllSTEM Connections
- **Location:** Ontario, CA, United States
- **Experience:** Expert
- **Contract:** Temporary contract
- **Skills:** Java (Programming Language), Microsoft Windows, Amazon Web Services, Server Applications, Applications Architecture, Bash Shell, Unix, Command-Line Interface, Cloud Computing, Configuration Management, Data Security, Middleware, Java Platform Enterprise Edition (J2EE), Web Servers, IBM Websphere Application Server, Jython, Python (Programming Language), Ansible, Software Deployment, Scripting, Delivery Pipeline, Infrastructure Automation Frameworks, Performance Monitor, Cloud Migration, Cloud Integration
- **Published:** June 24, 2026
- **Apply:** https://www.dice.com/job-detail/7d17aa8e-acbf-4560-af1a-49ead154d0e8

## About the Role

We are seeking a highly skilled Senior Middleware Systems Administrator (Level III) to manage, optimize, and secure our enterprise-level application and web server environments. In this role, you will act as a key technical resource responsible for application deployments, end-to-end infrastructure validation, and robust configuration management. This position heavily prioritizes infrastructure-as-code and automation; you will design and maintain scripting workflows to streamline server operations, manage digital certificates, and support cloud migration initiatives. The ideal candidate is a disciplined systems professional who understands enterprise Java environments and thrives in a fast-paced environment., Experience: Senior-level experience in systems administration with a distinct expertise in enterprise middleware management.
Technical Mastery:
oDeep, foundational understanding of Java runtime environments and application architecture.
oHighly proficient in Unix operating system administration, performance monitoring, and command-line execution.
oProven experience administering large-scale application servers (such as IBM WebSphere).
Automation Prowess:
oExpert-level proficiency in scripting with Python/Jython and Shell.
oHands-on knowledge of Ansible playbook development for infrastructure automation.
Cloud Competency: Working knowledge of AWS cloud concepts, networking, and compute instances.
Attributes:
oStrong communication and collaborative problem-solving skills.
oExceptional attention to detail regarding change control, system tracking, and data security.

## Description

Middleware Administration & Deployment
Application Serving: Install, configure, and maintain enterprise Java-based Application Servers (e.g., WebSphere) and high-performance Web Servers.
Deployment Support: Facilitate smooth application deployments, providing technical infrastructure and testing support to development and QA teams.
Security & Compliance: Manage corporate SSL/TLS certificate lifecycles, ensuring secure transmission protocols across all web and application tiers.
Environment Governance: Own application server configuration management, ensuring consistency across Development, QA, and Production environments.
Infrastructure Automation & Cloud Integration
Scripting & Automation: Design, develop, and implement advanced automation scripts using Python, Jython, and Shell to eliminate manual server tasks.
Configuration Management: Leverage Ansible to automate server provisioning, application patching, and deployment pipelines.
Cloud Operations: Support hybrid infrastructure strategies by aligning core middleware systems with AWS cloud architecture and best practices.

Operations & Support
On-Call Reliability: Participate in an engineering on-call rotation to provide tier-3 troubleshooting and incident resolution.
Maintenance Windows: Execute complex system upgrades, patching, and testing during scheduled off-hours and weekends as required by business needs.


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